One of my favorite things is A Very Rigid Corner bracket https://www.thingiverse.com/thing:5174183 by https://www.thingiverse.com/heyimscratch/designs

I wouldn't call this a remix, but I was inspired by HeyImScratch . I completely redrew it but I kept the footprint dimensions, added some curves and made the holes bigger. I like to use bigger screws and curves are easier on the eyes!

Enjoy.

Yes

I print it on it's side for strength and I like 40% infill.